Tensile strength on diameters 1/4 to 2 1/2 inches is a minimum of 150

5/8 x 12 Hex Lag Screw Zinc Plated

1/2-13 x 6 Hex Tap Bolt 18-8 (A2) Stainless Steel

Diameters over 2 1/2 inches have a meet a minimum of 140

1/2-13 x 12 Grade 5 Hex Cap Screw Zinc Plated

3/8 x 3 Powers Round Toggle Bolt Zinc Plated (25) Flat Mushroom Toggle Bolts Zinc Plated Tensile strength on diameters 1/43 8 x 3 Powers Round Toggle Bolt Zinc Plated (25) . The Toggle Bolt is a spring wing type hollow wall anchor designed for use in block, wallboard and other hollow base materials. The Toggle Bolt is a two part assembly consisting of a machine screw and a spring wing toggle. Sizes range from 1 8" x 2" to 1 2" x 6" with combo round, flat, mushroom, tie wire or slotted hex head styles. Download Powers Toggle Bolt Technical Data